Air rifle



FIG. 1 is a right side elevation view of the air rifle, showing my new design;

FIG. 2 is a left side elevation view of the air rifle;

FIG. 3 is a top plan view of the air rifle;

FIG. 4 is a bottom plan view of the air rifle;

FIG. 5 is a front elevation view of the air rifle; and,

FIG. 6 is a rear view of the air rifle.

The portions of the air rifle shown in broken lines form no part of the claimed design. 

The ornamental design for an air rifle, as shown and described. 